U0238
Lost Communication With Digital Audio Control Module D
U0238 is an OBD-II diagnostic trouble code meaning: Lost Communication With Digital Audio Control Module D. Common causes: digital audio module fault, broken can bus wires. Estimated repair cost: $167–556.
Symptoms
- Audio system doesn't work
- No sound from speakers
- Voice control is not responding
- Media screen won't turn on
Causes
- Digital Audio Module Fault
- Broken CAN bus wires
- Corroded or oxidized connectors
- Module power problems
- Software error
How to Fix
- CAN bus diagnostics using an oscilloscope
- Checking the power and ground of the audio module
- Inspect connectors and wiring
- Reflashing or replacing the audio module
- Checking fuses
Related codes
Error U0238 by Vehicle Brand
FAQ
What does the U0238 code mean?
U0238 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Digital Audio Control Module D
What causes a U0238 error code?
The most common causes of U0238 include: Digital Audio Module Fault; Broken CAN bus wires; Corroded or oxidized connectors; Module power problems.
How do I fix a U0238 diagnostic trouble code?
To fix U0238: CAN bus diagnostics using an oscilloscope. Checking the power and ground of the audio module. Inspect connectors and wiring. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0238?
Do not drive — repair immediately
How much does it cost to fix U0238?
The estimated repair cost for U0238 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat